| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a stretched laminated film which is favorably used as a retardation film and is supplied inexpensively, which has reduced variations of phase difference and which has physical properties adequate for rework, and also to provide a liquid crystal display device which is manufacturable at a low cost, is good in optical performances and is easy to rework. <P>SOLUTION: The stretched laminated film has a lamination of a layer bl of a thermoplastic resin composition B, a layer a of a styrene resin composition A, and a layer b2 of the thermoplastic resin composition B. When the glass transition temperatures (°C) of them are represented by Tg(A) and Tg(B), the midpoint glass transition temperatures (°C) by Tmg(A) and Tmg(B), and the extrapolated glass transition end temperature (°C) by Teg(A) and Teg(B), and these satisfy the expressions: Tg(B)<Tg(A)<Tg(B)+17; Tmg(B)<Tmg(A)<Tmg(B)+20; and Teg(B)+5<Teg(A)<Teg(B)+23 in the stretched laminated film. <P>COPYRIGHT: (C)2009,JPO&INPIT |
